scholarly journals COMPARISON OF ANTIMICROBIAL EFFICACY OF THREE TYPES OF MOUTHWASH, CONTAINING CHLORHEXIDINE-CHLORBUTANOL, ALCOHOL-ESSENTIAL OILS AND PROPOLIS-MENTHA OIL COMBINATIONS

2020 ◽  
Vol 26 (4) ◽  
pp. 3398-3402
Author(s):  
Neli Ermenlieva ◽  
◽  
Emilia Georgieva ◽  
Minko Milev ◽  
Nadya Agova ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Essential Oils ◽  
Aureus Strain ◽  
Diffusion Method ◽  
Antiseptic Solution ◽  
Agar Diffusion ◽  
Microbial Strains ◽  
Inhibition Zones ◽  
Antibacterial And Antifungal ◽  
Anti Fungal

Mouthwash is an antiseptic solution intended to reduce the microbial load in the oral cavity, although other mouthwash might be given for other reasons such as for their analgesic, anti-inflammatory or anti-fungal action. A study was carried out to compare the antibacterial and antifungal properties of three mouthrinse preparations - both containing commercial used antiseptic combinations (chlorhexidine 0,100% + chlorbutanol 0,500% and alcohol 21,60% + essential oils) and one with natural active ingredients (propolis 2,00% + mentha oil 0, 042%). The antibacterial and antifungal activity of three types of mouthwash were tested on three microbial strains - Staphylococcus aureus, Escherichia coli and Candida albicans by two alternatives of agar diffusion tests – “cup plate” technique and disc-diffusion test. The results showed the highest antimicrobial activity of the chlorhexidine-chlorbutanol combination. Mouthwash containing propolis with mint oil demonstrated activity only against S. aureus strain. It turned out that testing the antimicrobial activity of mouthwash with alcohol with essential oils with the agar diffusion method is not representative. For 24 hours with this mouthwash, no inhibition zones were observed in none of the strains at any concentration. Our assumption is that alcoholic solutions are exuding and bacteria starts to grow.

Preliminary phytochemical screening and antimicrobial activities of plant extract of Elaeocarpus ganitrus Roxb.

2016 ◽  
Vol 5 (09) ◽  
pp. 4885 ◽  
Author(s):  
Khushbu Pandey ◽  
Mahendra Singh* ◽  
Bharat Pandey ◽  
Anshulika Upadhyaya ◽  
Kamal K. Pande
Keyword(s):  
Antimicrobial Activity ◽  
Rhizopus Oryzae ◽  
Antimicrobial Activities ◽  
Diffusion Method ◽  
Phytochemical Analysis ◽  
Phytochemical Screening ◽  
Bacterial Strains ◽  
E Coli ◽  
Antibacterial And Antifungal ◽  
Anti Fungal

The present study was carried out for phytochemical screening of principle bioactive compounds and antimicrobial activity in Elaeocarpus ganitrus Roxb., Phytochemical analysis revealed the presence of saponin, terpenoid, steroid, saponin, flavonoid, tannin and alkaloid. The petroleum, ether, chloroform, methanol, acetone and aqueous extracts were subjected to antimicrobial activity against bacterial strains Staphylococcus aureus, Pseudomonas, E. coli and Bacillus subtilis against anti-fungal strains A.awamori, A.fumigatus, Rhizopus oryzae, Trichoderma viridae and C.oryzae. The antibacterial and antifungal activity was evaluated by disc-diffusion method.

scholarly journals Antibacterial and antifungal activities of essential oils from medicinal plants found in the South Pacific

2017 ◽  
Vol 35 (1) ◽  
pp. 10 ◽  
Author(s):  
R. R. Chand ◽  
A. D. Jokhan ◽  
R. D. Gopalan ◽  
T. Osborne
Keyword(s):  
Medicinal Plants ◽  
Essential Oils ◽  
Pathogenic Bacteria ◽  
South Pacific ◽  
Inhibitory Effect ◽  
Diffusion Method ◽  
The South ◽  
Inhibition Zones ◽  
Bacteria And Fungi ◽  
Antibacterial And Antifungal

Natural products such as essential oils have been studied since ancient times to understand their biological properties. Essential oils are noted for their antimicrobial activity. Thus, the focus of this study was to evaluate the antimicrobial effect of five essential oils (EOs) from selected medicinal plants found in the South Pacific, on selected human pathogenic bacteria and fungi affecting agricultural industries. The disc diffusion method was carried out and the diameter of inhibition zones (mm) (DZI) using 0.25, 0.5, 5, 25, 50 and 100% (v/v) of essential oil concentrations were reported. The activity of Cananga odorata essential oils against Thermus thermophiles and Pseudomonas aeruginosa were among the selected bacteria that only showed the susceptibility at the lowest concentration (0.25% v/v). The diameter inhibition zones were 1.60 mm and 4.20 mm, respectively. The inhibitory effect of Ocimum tenuiflorum L essential oils at the highest concentration (100%) showed DZI ranging above 14 mm for all the selected bacteria and above 25 mm for the all selected fungi. The inhibitory effect of selected bacteria and fungi increased with stronger concentrations of essential oils. Hence, the essential oils from medicinal plants found in the South Pacific hold great potential for the antibacterial and antifungal properties.

scholarly journals Phenolic Composition, Antioxidant and Antimicrobial Activity of Cotoneaster Medik. Species from Bosnia and Herzegovina

2020 ◽  
Keyword(s):  
Antimicrobial Activity ◽  
Leaf Extract ◽  
Acetylcholinesterase Inhibition ◽  
Bacterial Strains ◽  
Methanolic Extracts ◽  
Microbial Strains ◽  
Inhibition Zones ◽  
Antioxidant And Antimicrobial Activity ◽  
Antibacterial And Antifungal ◽  
Ornamental Species

Although the genus Cotoneaster Medik. includes mainly ornamental species, there are some data regarding its biological activity. The purpose of this study was to analyze the content of phenolic compounds, acetylcholinesterase inhibition, antioxidant and antimicrobial activity of methanolic extracts of leaf and bark of C. integerrimus Medik., C. tomentosus (Aiton) Lindl. and C. horizontalis Decne. The C. tomentosus leaf extract exhibited the highest content of total phenols (135.86 mg GAE/g) and flavonoids (18.17 mgQE/g), and also the most potent antioxidant activity against nonbiogenic free radicals, while the highest inhibition of acetylcholinesterase had the leaf extract of C. horizontalis (IC50 0.34 mg/mL). All extracts showed a significant level of antibacterial and antifungal activity against tested microbial strains. The largest inhibition zones were observed against Candida albicans treated with C. integerrimus leaf extract (30.50±0.50 mm). Furthermore, C. integerrimus extract was the most effective in the majority of bacterial strains tested. The results indicated that methanolic extracts of the investigated Cotoneaster species have promising bioactive and therapeutic potentials

The Study of Essentials Oils Obtained from Thymus pannonicus L. - Microbiological Aspects

2018 ◽  
Vol 1 (1) ◽  
pp. 53-59
Author(s):  
Irina Boz ◽  
Simona Dunca
Keyword(s):  
Antimicrobial Activity ◽  
Essential Oils ◽  
Diffusion Method ◽  
Volatile Oils ◽  
Disc Diffusion Method ◽  
Temperature Radiation ◽  
Antibacterial And Antifungal ◽  
Vegetation Stage ◽  
Microbiological Aspects

Abstract Essentials oils have been used over time in the food and cosmetics industry, but also in the medical and pharmaceutical industry. Environmental factors such as temperature, radiation and photoperiod play an extremely important role in the quantity and quality of volatile oils. It is also known that the vegetation stage can play an important role in the chemical composition of volatile oils. The purpose of this paper is to establish the antibacterial and antifungal activity of volatile oils of Thymus pannonicus, taking into account the ontogenetic stage in which the plants were collected, highlighting the compounds of therapeutic importance. To test the antimicrobial activity of essential oils two methods of work were used: Kirby-Bauer disc diffusion method and microplate method. The essential oils studies were tested on Staphylococcus aureus ATCC 25923, Escherichia coli ATCC 25922 and Candida albicans. It was find that all essential oils tested have antimicrobial activity at all stages of development tested. The maximum antimicrobial activity has been recorded for the oils extracted from individuals collected at the anthesis stage.

scholarly journals Chemical Composition and Antimicrobial Activity of Essential Oils from Black Pepper, Cumin, Coriander and Cardamom Against Some Pathogenic Microorganisms

2016 ◽  
Vol 20 (2) ◽  
pp. 39-52 ◽  
Author(s):  
Desislava Teneva ◽  
Zapryana Denkova ◽  
Bogdan Goranov ◽  
Rositsa Denkova ◽  
Georgi Kostov ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Antimicrobial Activity ◽  
Essential Oils ◽  
Black Pepper ◽  
Diffusion Method ◽  
Piper Nigrum ◽  
Oil Composition ◽  
Gram Positive Bacteria ◽  
Inhibition Zones ◽  
Main Components

Abstract Four popular spices black pepper (Piper nigrum L.), cumin (Cuminum cyminum L.), coriander (Coriandrum sativum L.) and cardamom (Elettaria cardamomum) were analyzed for their oil composition by GC-MS. Thirty compounds were identified in the black pepper oil and the main components were β-caryophyllene (20.225 %), sabinene (18.054 %), limonene (16.924 %), α-pinene (9.171 %) and α-phellandrene (5.968 %). Twenty five compounds were identified in the cumin oil – cuminaldehyde (30.834 %), 3-caren-10-al (17.223 %), β-pinene (14.837 %), γ–terpinene (11.928 %), 2-caren-10-al (8.228 %) and pcymene (6.429 %). Twenty nine compounds were identified in the coriander oil – β-linalool (58.141 %), α-pinene (8.731 %), γ-terpinene (6.347 %) and p-cymene (5.227 %). Twenty nine compounds were identified in the cardamom oil – α-terpinyl acetate (39.032 %), eucalyptol (31.534 %), β-linalool (4.829 %), sabinene (4.308 %) and α-terpineol (4.127 %). The antimicrobial activity of essential oils against pathogenic (Escherichia coli ATCC 25922, Escherichia coli ATCC 8739, Salmonella sp. (clinical isolate), Staphylococcus aureus ATCC 6538P, Proteus vulgaris G) microorganisms by disc-diffusion method was examined. Gram-positive bacteria were more sensitive to the oils (inhibition zones being between 8 and 12.5 mm) and the minimum inhibitory concentration was more than 600 ppm; Gram-negative bacteria were less sensitive. The obtained essential oils are suitable for use as biopreservative agents.

scholarly journals Effects of Natural Antimicrobials on Xanthomonas Strains Growth

Horticulturae ◽  
2021 ◽  
Vol 8 (1) ◽  
pp. 7
Author(s):  
Irena Mačionienė ◽  
Dovilė Čepukoit ◽  
Joana Šalomskienė ◽  
Darius Černauskas ◽  
Daiva Burokienė ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Essential Oils ◽  
Lactobacillus Helveticus ◽  
Mentha Piperita ◽  
Diffusion Method ◽  
Thymus Vulgaris ◽  
Aqueous Extracts ◽  
Bacterial Strains ◽  
Natural Antimicrobials ◽  
Inhibition Zones

The aim of this work was to investigate the most promising natural antimicrobials effective for the growth suppression of Xanthomonas spp. bacteria. The research objects were Xanthomonas spp. strains isolated from tubers and stem of plants growing in Lithuania: Xanthomonas translucens NRCIB X6, X. arboricola NRCIB X7, NRCIB X8, NRCIB X9, and NRCIB X10; the supernatants of lactic acid bacteria Lactococcus lactis strains 140/2, 57, and 768/5, Lactobacillus helveticus strains 14, 148/3, R, and 3, Lb. reuteri 3 and 7, Streptococcus thermophilus 43, Enterococcus faecium 59-30 and 41-2; endophytic bacterial strains Bacillus, Pseudomonas, and Paenibacillus spp.; and essential oils of lavender (Lavandula angustifolia), grapefruit (Citrus paradisi), pine (Pinus sylvestris), thyme (Thymus vulgaris), rosemary (Rosmarinus officinalis), peppermint (Mentha piperita), lemon (Citrus limetta), aqueous extracts of blueberries (Vaccinium myrtillus), and cranberries (Vaccinium vitis-idaea). The antimicrobial activity of tested substances was determined by agar diffusion method. Supernatants of Lb. reuteri strain 7 and Lb. helveticus strains 14, R, 3, and 148/3 were found to have a high antimicrobial activity against Xanthomonas spp. bacteria strains when compared to the positive control—1.0% copper sulfate (diameter of inhibition zones was 28.8 ± 0.7 mm). The diameter of inhibition zones of supernatants ranged from 23.3 ± 0.6 mm to 32.0 ± 0.1 mm. Thyme (2.0%) and lavender (2.0%) essential oils inhibited the growth of Xanthomonas spp. strains. The diameter of the inhibition zones was from 14.7 ± 0.8 mm to 22.8 ± 0.9 mm. The aqueous extracts of blueberries had a weak antimicrobial activity. The diameter of inhibition zones ranged from 11.0 ± 0.2 mm to 13.0 ± 0.2 mm.

The In vitro Evaluation of the Antimicrobial Activity of Quercus robur L. Methanolic and Aqueous Leaves’ Extracts, from the Algerian High Plateaus Against some Uropathogenic Microbial Strains

2019 ◽  
Vol 18 (5) ◽  
pp. 262-274
Author(s):  
E. Benyagoub ◽  
N. Nabbou ◽  
S. Boukhalkhel ◽  
I. Dehini
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Antimicrobial Activity ◽  
Candida Albicans ◽  
Enterococcus Faecalis ◽  
Fusidic Acid ◽  
Quercus Robur ◽  
Diffusion Method ◽  
Phytochemical Analysis ◽  
Microbial Strains

The medicinal value of the plants is due to their chemical components that bring a definite physiological action on the human body to prevent the diseases. In this work, we investigated the antimicrobial activity of leaves’ extracts of Quercus robur L., collected from the Algerian upper highlands, on ten bacterial strains and one fungal strain known to be pathogenic. First, we performed a qualitative phytochemical analysis, and second, antimicrobial activity tests performed by agar diffusion method (disc and well) with the determination of MIC by broth macro-dilution method. Given the results, it appears that obtained macerates of Quercus robur L. were rich in bioactive phytoconstituents such as alkaloids, anthraquinones, saponins, tannins, and other components. The yield of aqueous and methanolic macerates of leaves was 8.5 ± 1.41 and 22.4 ± 4.36%, respectively. The bacterial resistance was relatively important to several antibiotics, namely, ampicillin, amoxicillin + clavulanic acid for strains of Escherichia coli and Salmonella sp. However, Staphylococcus aureus strains were resistant to fusidic acid, penicillin, and oxacillin; while Enterococcus faecalis was resistant to fusidic acid, penicillin, oxacillin, and ticarcillin. The antibacterial activity of the macerates toward tested microbial strains showed that the aqueous and methanolic macerates of the leaves were proportional to the tested concentration and active not only against Gram-positive and Gram-negative bacteria but also on the fungal species Candida albicans. The estimated MIC for Escherichia coli, Enterococcus faecalis, and Staphylococcus aureus was in the order of 10 mg/mL, which seems more effective than toward Salmonella sp., Klebsiella pneumoniae, Pseudomonas aeruginosa, and Candida albicans which were in the order of 30 mg/mL. These preliminary results confirm that the part of the studied plant had a very good antimicrobial activity that was proportional to the serial concentrations of the tested extracts.

scholarly journals Phytochemical investigation and in vitro antimicrobial activity of Richardia scabra

2016 ◽  
Vol 11 (2) ◽  
pp. 248 ◽  
Author(s):  
Kathirvel Poonkodi ◽  
Subban Ravi
Keyword(s):  
Antimicrobial Activity ◽  
Diffusion Method ◽  
Bacterial Strains ◽  
Weed Species ◽  
Antibacterial And Antifungal Activities ◽  
Agar Plug ◽  
Phytochemical Investigation ◽  
Antibacterial And Antifungal ◽  
Simple Sugar

<p class="Abstract">The present study was aimed to evaluate the phytochemical screening and antimicrobial activity of the petroleum ether and methanol extracts from the mature leaves of <em>Richardia scabra</em> from India. Disc diffusion method was used to determine the zone inhibition of the tested samples for antibacterial and agar plug method was used to determine the antifungal activity, while the microtube-dilution technique was used to determine the minimum inhibitory concentration. Both extracts showed significant antibacterial and antifungal activities when tested against 10 bacterial and four fungal strains. The minimum inhibitory concentrations of the methanol extract of<em> R. scabra</em> ranged between 12.5–100 μg/mL for bacterial strains. Alkaloids, steroids, flavonoids, fatty acids, terpenoids and simple sugar were detected as phytoconstituents of extracts. To the best of our knowledge, this is the first report against antimicrobial activity of common weed species <em>R. scabra</em> found in India.</p><p> </p>

scholarly journals Evaluation of the antimicrobial effect of calcium hydroxide combined to different vehicles

2016 ◽  
Vol 31 (2) ◽  
pp. 89
Author(s):  
Tatiana Dantas Piana ◽  
Maria de Fátima Malvar Gesteira ◽  
Erica Dos Santos Carvalho ◽  
Josilene Borges Torres Lima Matos ◽  
Monica Franca ◽  
...  
Keyword(s):  
Calcium Hydroxide ◽  
Enterococcus Faecalis ◽  
Antimicrobial Effect ◽  
Antimicrobial Action ◽  
Diffusion Method ◽  
Agar Diffusion ◽  
Inhibition Zones ◽  
Agar Diffusion Method

Objective: To evaluate the potentiating effect of different substances in antimicrobial action of calcium hydroxide.Methods: The agar diffusion method, was used with well technique, to analyze seven substances associated to calcium hydroxide to make some pastes, they are: chlorexidine, saline, anesthetic, malvatricin, propolis, hypochlorite, paramonochlorophenol.Results: The pastes with malvatricin and paramonochlorophenol presented greater inhibition zones against Enterococcus faecalis.Conclusion: There was potentialization in antimicrobial effect of calcium hydroxide when associated to paramonochlorophenol and to malvatricin especially against Enterococcus faecalis. Low increase of the antimicrobial capacity was observed when using chlorexidine as vehicle to calcium hydroxine paste.

scholarly journals Komposisi Minyak Atsiri dan Aktivitas Antimikroba Rimpang Temu Putih dan Jahe Gajah sebagai Fitobiotik Pakan Unggas

2019 ◽  
Vol 6 (2) ◽  
pp. 181
Author(s):  
Laila Nur Rohma ◽  
Laila Nur Rohma ◽  
Osfar Sjofjan ◽  
M. Halim Natsir
Keyword(s):  
Escherichia Coli ◽  
Antimicrobial Activity ◽  
Essential Oil ◽  
Essential Oils ◽  
Feed Additives ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Activity Test ◽  
Main Component

ABSTRAK                                                                        Imbuhan pakan unggas dapat berasal dari bahan herbal yang mengandung berbagai komponen aktif yang bermanfaat bagi pertumbuhan ternak.Temu putih dan jahe gajah dapat dimanfaatkan sebagai imbuhan pakan karena mengandung minyak atsiri yang dapat berperan sebagai agen antibakteri. Penelitian ini bertujuan untuk mengetahui komponen penyusun minyak atsiri dan aktivitas antimikroba pada rimpang temu putih dan jahe gajah. Penelitian dilakukan dengan percobaan in vitro menggunakan temu putih dan jahe gajah yang diolah menjadi bentuk ekstrak minyak atsiri temu putih dan jahe gajah sebagai materi uji komposisi penyusun minyak atsiri serta bentuktepung dan enkapsulasi sebagai materi uji aktivitas antimikroba. Komposisi minyak atsiri temu putih terdiri dari lima komponen penyusun dengan cis-1,7-octadien-3-yl acetat sebagai komponen utama. Komposisi minyak atsiri jahe gajah terdiri dari tujuh komponen dan benzene,1-(1,5-dimethyl-4-hexenyl)-4-methyl-(CAS) ar-curcumene sebagai komponen utama. Minyak atsiri yang terkandung pada temu putih dan jahe gajah mempunyai peran dalam menghambat mikroba. Uji komposisi penyusun minyak atsiri menggunakan alat GC-MS dan uji aktivitas antimikroba menggunakan metode disc diffusion dan. Hasil dari uji aktivitas antimikroba menunjukkan bahwa temu putih dan jahe gajah dalam bentuk tepung dan enkapsulasi memiliki perbedaan yang sangat nyata (P<0,01) terhadap aktivitas antimikroba pada bakteri asam laktat, Escherichia coli dan Salmonella sp. Campuran temu putih dan jahe gajah (1:1) menunjukkan kemampuan terbaik dalam menghambat pertumbuhan bakteri patogen dengan diameter zona hambat 5,70±0,14 mm  (Escherichia coli) dan 6,88±0,45 mm (Salmonella sp.).Kata Kunci : antimikroba, fitobiotik, jahe gajah, minyak atsiri, temu putihABSTRACTThe poultry feed additives can contain herbal ingredients that contain various beneficial components for livestock growth. White turmeric and giant ginger can be used as feed additives because they contain essential oils that can be used as antibacterial agents. This study aims to determine the constituent components of essential oils and antimicrobial activity in white turmeric and giant ginger rhizomes. The study was carried out by in vitro experiments using white turmeric and giant ginger which were processed into the form of essential oil extract as material for the composition of essential oils test, and powder and encapsulation form as antimicrobial activity test material. The composition of essential oils of white turmeric consists of five constituent components with cis-1,7-octadien-3-yl acetate as the main component. The composition of giant ginger essential oil consists of seven components with benzene, 1- (1,5-dimethyl-4-hexenyl) -4-methyl- (CAS) ar-curcumene as the main component. Essential oils contained in the white turmeric and giant ginger have a role in inhibiting microbes. The composition of the essential oil tested using GC-MS and the antimicrobial activity test used the disc diffusion method. The results of the antimicrobial activity test showed that white turmeric and giant ginger in powder and encapsulation form had significant differences (P <0.01) on antimicrobial activity in lactic acid bacteria, Escherichia coli and Salmonella sp. The mixture of white turmeric and giant ginger (1: 1) showed the best ability to inhibit the growth of pathogenic bacteria with inhibitory zone diameters of 5.70 ± 0.14 mm (Escherichia coli) and 6.88 ± 0.45 mm (Salmonella sp.).Keywords: antimicrobial, essential oil, giant ginger, phytobiotic, white turmeric

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